Potassium Bromide (KBr) Optical Crystal, <100>, Single-side polish, 20 x 20 mmProduct Type: Infrared optical crystal
Research-grade laboratory product
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LABORATORY PROCUREMENT SUPPORT
For model selection, technical specification confirmation or configuration support, contact our technical sales team.
E-MAIL: inquiry@atomfair.com
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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This crystal is water-soluble and moisture sensitive, requiring dry storage and handling. Chemical polishing is not recommended due to risk of surface damage.
- Moisture Sensitivity: Store and handle the crystal in a dry environment to prevent dissolution or surface degradation.
- Chemical Polishing Restriction: Do not use chemical polishing methods as they may damage the crystal surface.
- Cleanroom Handling: Handle and package the crystal in a Class 1000 or cleaner environment to maintain specified surface quality.
How does single-side polish on this KBr crystal affect its performance for infrared spectroscopy compared to double-side polish?
Single-side polish is sufficient for applications where only one optically smooth surface is required, such as in thin-film substrate workflows where the opposite side is used for dissolution or mounting. For infrared spectroscopy windows or transmission components, double-side polish would be necessary to minimize scattering and maintain high transmission (91% across 0.2–27.5 μm). The single-side polish option on this 20×20 mm substrate is specified for use cases where the unpolished side is acceptable, such as water-soluble film separation, while still meeting surface roughness ≤30 nm and surface quality S/D 80/50.
What precautions are required when using this KBr crystal as a water-soluble substrate for film-substrate separation?
The KBr crystal is water-soluble, enabling easy separation of deposited films by dissolving the substrate in water. However, it is moisture-sensitive and must be stored in a Class 100 clean bag and handled only in a Class 1000 or cleaner-room environment to prevent surface degradation before use. Chemical polishing is not recommended due to solubility; only mechanical polishing should be applied. The crystal is grown by the Czochralski method with <100> orientation, providing a uniform cubic structure for consistent film deposition.
What are the recommended storage and handling conditions for this KBr optical crystal to maintain its surface quality?
This KBr crystal is water-soluble and moisture sensitive, requiring storage in a dry, low-humidity environment. It is packaged in a Class 100 clean bag and must be handled only in a Class 1000 or cleaner-room environment. Chemical polishing is not recommended; only mechanical polishing is allowed. The surface roughness is specified as ≤30 nm with surface quality S/D 80/50, and orientation tolerance is ±0.5–2°. Thickness is customizable from 0.5–5 mm, and the melting point is 770°C with density 1.98 g/cm³.
This KBr optical crystal with <100> orientation and single-side polish offers broad UV-to-mid-IR transmission (0.2–27.5 μm) and high transmission (91%), making it suitable for infrared spectroscopy and water-soluble thin-film substrate applications. However, its water solubility requires strict moisture control during handling and storage.
Positive
- Broad UV-to-mid-IR transmission: Transmission range of 0.2–27.5 μm covers ultraviolet to mid-infrared, enabling use in infrared spectroscopy, prisms, lenses, and windows.
- High transmission with low impurity absorption: 91% transmission with low impurity absorption improves signal-to-noise ratio in sensitive spectroscopic measurements.
Trade-offs
- Water-soluble and moisture sensitive: The crystal is water-soluble and requires handling in dry environments; chemical polishing is not recommended due to moisture sensitivity.
- Surface quality constraints: Surface quality S/D 80/50 and roughness ≤30 nm demand careful handling to avoid scratches or contamination during deployment.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
